412 



NATURE 



[May 27, 1920 



Department of Statistics, India. Agricultural 

 Statistics of India, 19 17-18. Vol. i. Pp. xvi + 321. 

 (Calcutta : Superintendent, Government Printing, 

 India.) 2 rupees. 



Geology of the Mid-Continent Oilfields, Kansas, 

 Oklahoma, and North Texas. By Dr. T. O. Bos- 

 worth. Pp. XV 4- 3 14. (New York : The Macmillan 

 Co.; London: Macmillan and Co., Ltd.) 3 dollars. 



Chemical Services Committee, 1920, Report. 

 Pp. xii+i2i. (Simla: Suot., Government Central 

 Press.) 



Diary of Societies. 



THURSDAY, May 27. 

 RovAL Institution OF Grkat Britain, at 3.— William Archer : Dreams, 



with Special Reference to Psycho-Analysis. 

 LiNNEAN Society (Anniversary Meeting), at 3. 

 Royal Society, at 4.30. 

 Concrete Institute (Annual General Meeting, followed by an Ordinary 



Meeting), at 7.30. — Major H. Best : The Mystery Port, Richborough. 

 RovAL Society of Meoicine (Urology Section), at 8.30. — Sir Peter 



Freyer: Modern Progress in Urinary Surgery. 

 FRIDAY, May 28. 

 Royal Society of Medicine (Study of Disease in Children Section) 



at 4. 30. -(Annual General Meeting.) 

 Physical Society of London, at 5. — Sir W. H. Bragg and Others: 



Discussion on X ray Spectra. 

 Junior Institution of P2ngineer«, at 7.30. — A. Arnold : Two Years as 



an Engineer in the Grand Fleet. 

 Royal Society of Meoicine (Epidemiology and Plate Medicine Section) 



(Annual General Meeting), at R 30. — Dr. P. Hartley and Prof. C. J. 



Martin : The .Apparent Rate of Disappearence of Diphtheria Bacilli from 



the Throat after an .\ttack of the Disease. 

 Royal Institution of Great Britain, at 9. — Prof. W. L. Bragg: 



The Packing of Atoms in Crystals. 



SA TURD A V, May 29. 

 Royal Institution of Great Britain, at 3. — Dr. J. H. Jeans : The 

 Theory of Relativity (Tyndall Lectures). 



MONDAY, May 31. 



Royal Society of Arts (Indian Section), at 4.30.— A. Howard : The 

 Improvement of Crop Production in India. 



Victoria Institute (at Central Buildings, Westminster), at 4 30. — Rev. 

 S. A. McDowall : The Mearting of the /Esthetic Impulse. 



Surveyors' Institution, at 5. — (Annual General Meeting.) 



Royal Geographical Society (at jEolian Hall), at 5.30.— (Anniversary 

 Meeting.) 



Royal Society of Med'cine (Odontology Section) (Annual General 

 Meeting), at 8.— C. A. Clark : Relation of Teeth to the Floor of the 

 Antrum. 



TUESDAY, June i. 



Institution of Gas Engineers (at Institution of Mechanical Engineers), 

 at 10.30 a.m.— Sir Dugald Clerk : Presidential Address. — Report of 

 Refractory Materials Research Committee : (a) The Casting of Gas 

 Retorts ; (b) Some Comparative Tests of Machine-made and Hand-made 

 -Silica Bricks; (c) The Specific Heats of Refractory Materials at High 

 Temperatures. — Report of the Life of Gas Meters Research Committee: 

 The Internal Corrosion of Mains. Services, and Meters. — Dr. .S. F. 

 Dufton and Prof. J. W. Cobb: Report of Institution Gas Research 

 Fellowship: Some High Temperature Reactions of Toluene and Benzene. 



Royal Horticultural Society (at Royal Gardens, Chelsea), at 3.— 

 Dr. E. J. Russell : Some Modern /*spects of Manuring. 



Royal Institution of Great Britain, at 3.— Major C. E. Inglis : 

 The Evolution of Large Bridge Construction. 



Zoological Society of London, at 5.30. — Dr. G. M. Vevers: Report 

 on the Entozoa Collected from Animal-, which Died in the Gardens 

 during the Past Nine Months. — Prof. K. T. Leioer : Exhibition: Experi- 

 mental Transmission of Some Helminth Infections.— Dr. W. T. Caiman: 

 Notes on Marine Wood-boring Animals, i. The Shipworms(TeredinidaE). 

 — Dr. P. Chalmers Mitchell: Notes on an African Trip, with Lantern 

 Illustrations. 



Royal Photographic Society of Great Britain (Technical Meeting), 

 at 7. — C. P. Crowther : Japanese MHange, including Photographs and 

 Examples of Japanese Crafts. 



Royal Anthropological Institute, at 8.15.— Dr. B. Malinow.'-ki : 

 The Economic Pursuits of the Trobriand Islands. 



Rontgen Society (at Medical Society of London), at 8.15. — (Annual 

 General Meeting.) 



Royal Society of Medicine (Psychiatry Section) (Annual General 

 Meetine), at 8-30. —Dr. D. For.syth ; The Psycho-Analysis of a Case of 

 Early Paranoid Dementia. 



WEDJfESDA Y, June 2. 

 Institution of Gas Engineers (at Institution of Mechanical Engineers), 



at 10 a.m.— Tiiird Report of the Gas Investigation Committee. 

 Royal Horticultural Society (at Royal Gardens, Chelsea), at 3. — 



Dr. A. B. Rendle : Plants of Interest in the Exhibition. 

 Society of Public Analysts and other Analytical Chemlsts (at 



Chemical Society), at 8. — R. Leitch Morris: Perchlorate Method for 



Pota.sh. — H!. Droop Richmond : Estimation for Nitroglycerine. — E. R. 



Dovey : Apparatus for Evolution Methods of Analysis: An Improved 



Form of U-tube. ', 



THURSDAY, June 3. 

 Institution of Gas Engineers (at Institiition of Mechanical Engineers), 



at 10 a.m. — Society of British Gas Industries : Carbonisation. — H. J. 



Hodsman and Prof. J.W. Cobb : Oxygen in Gas Production. — J. Fisher : 

 Electricity Supply by Gas Companies. — G. Warburton : Contemplations 

 on the Report of the Fuel Research Board. 



Royal Horticultural Society (at Royal G.irdens, Chelsea), at 3. — 

 Capt. H. J. Page : Green Manuring— Its Possibilities in Horticulture. 



Royal In-stitution of Great Britain, at 3.— William Arch«r : Dreams 

 with Special Reference to Psycho-Analysis. 



Royal Society, at 4.30.— Sir Ernest Rutherford : The Nuclear Constitu- 

 tion of the Atom (Rakerian Lecture). 



LiNNEAN Society of London, at 5.— R. Swainson-Hall : Exhibition of 

 50 Drawings of the Oil-Palm, Elnc's guineensis. — A. Whitehead : Objects 

 Observed near B.-\sra during the War. — Prof. W. J. Dakin : Whaling in 

 the Southern Ocean. — Dr. R. R. Gates : Demonstration of Chromosomes 

 in the Pollen Development of Lettuce. 



Chemical Society, at 8. 



Royal Society of Medicine (Obstetrics and Gynaecology Section), at 

 8. — Dr. P. Turner : Traumatic Rupture of the Pedicle of a Sub- Perito- 

 neal Fibroid. — Dr. F. Andersjn: A Case of Rupture of the Uterus. — Dr. 

 F. Shaw and Dr. Burrows: Radical Cure of Advanced Carcinoma of the 

 Cervix, made Possible by the Application of Radium.— G. Ley: The 

 Pathology of Ante-Partum Hjeinorrhage. 



FRIDAY, June 4. 



Royal Society of Arts (Indian and Colonial Sections, Joint Meeting), 



at 4.30. — Piof. Sir John Cadman : The Oil Resources of the British 



Empire. 



Royal In-stitution of Great Britain, at 9.— Sir Ronald Ross : Science 



and Poetry. 



SATURDAY, June 5. 

 Royal Institution of Great Britain, at 3.— Dr. J. H. Jeans : The 

 Theory of Quanta. 



CONTENTS. PAGE 



The University of London : A Great Opportunity . 381 



Manuals on Applied Chemistry ....... 382 



A Standard Book on Soils. By E. J. R. .... 384 



Savages of the Far Past. By R. R. M 384 



The Problem of Clean and Safe Milk. By Prof. 



Sheridan Delepine . 385 



Our Bookshelf . . 386 

 Letters to the Editor: — 



Scientific Work : Its Spirit and Reward. — Dr. 



Gilbert J. Fowler 387 



Applied Science and Industrial Research. — J. W. 



Williamson 387 



A Rainbow Inside Out. {With Diagrams.)— C. O. 



Bartrum 388 



" All-or-None " in the Auditory Nerve. — Dr. W. 



Perrett 390 



British and Foreign Scientific Apparatus. — Douglas 



H. Baird 390 



Mortlakes as a Cause of River-windings. — Henry 



Bury . 391 



Science and the New Army. — C. S. Wright . . . 391 

 Waage's Phytochemical Synthesis of Phloroglucin 



from Glucose.— Dr. M. Nierenstein . . . 391 

 The Development of British East Africa, {///us- 



trated.) . . . . -392 



Weather Notes of Evelyn, Pepys, and Swift in 

 Relation to British Climate. By Capt. C. J. P. 



Cave 393 



Optical Instruments in Industry. {Illustrated.) . 394 



The British Sea Fisheries. {Illustrated:) By J, J. . 397 



Notes . . . 398 



Our Astronomical Column : — 



Astronomical Announcements by Wireless Telegraphy 403 



The Astrographic Catalogue . 403 



Tidal Friciion and the Lunar and Solar Accelerations 403 

 The Iron and Steel Institute. By Piof. H. C. H. 



Carpenter, F.R.S 403 



The University of London : Government Offer of a 



Site 404 



Genetic Studies of Drosophila. By Prof. L. 



Doncaster, F.R.S 405 



The Conservation of Fuel 406 



Buddhism in the Pacific 407 



Astronomy at Oxford during the War. By D. L. E. 407 



The Alligator Pear ... 408 



The Improvement of Grassland. By Dr. W, E. 



Brenchley 408 



Levelling Errors. By H. G. L. 409 



University and Educational Intelligence . . . . . 409 



Societies and Academies 410 



Books Received 411 



Diary of Societies 412 



NO. 2639, VOL. 105] 



